Verizone taking Vonage to court
Details here...
http://www.voipcentral.org/entry/verizon-take-files-lawsuit-against-vonage-for-voip-patent-infringement/
SIP is an application layer protocol,standardized and mantained by IETF.It is used for transfering multimedia data over an IP network.SIP runs over TCP/UDP ,uses port number 5060,and makes a voip developers life much easier.to know about SIP in detail you may visit.. http://en.wikipedia.org/wiki/Session_Initiation_Protocol I have created this blog to put news and info regarding VOIP (Voice over internet protocol),and SIP. I feel SIP is the future of telephony.
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